I just started turkey hunting last year so I'm far from an expert, but I've killed 5 birds in the last two years and 2 of them were in the rain. Last weekend it was pouring rain and lightning so the birds didn't come off the roost until about 7 am. Fortunately they flew right into me and I was able to harvest my first double bearded bird! From what I can tell when it rains they like to get out in the fields so bring a rain coat and wait em out! Good luck!!